Yes
you do need a jacket based on the weather in Caernarfon, UK 1 second ago
Why? Because it's not very warm out.
53°F12°C & Mostly Clear
Wind is 2 mph4 km/h from the SE, gusting to 8 mph13 km/h
| May 1 | ||||
| 5am | 54°F12°C | 3 mph4 km/h SE | Mostly Clear | |
| 6am | 56°F13°C | 3 mph5 km/h SE | Partly Cloudy | |
| 7am | 57°F14°C | 3 mph4 km/h SE | Mostly Cloudy | |
| 8am | 58°F15°C | 2 mph4 km/h S | Mostly Cloudy | |
| 9am | 58°F14°C | 3 mph5 km/h NW | Cloudy | |
| 10am | 57°F14°C | 4 mph6 km/h NW | Cloudy | |
| 11am | 56°F13°C | 4 mph7 km/h NW | Cloudy | |
| 12pm | 56°F13°C | 5 mph8 km/h NW | Cloudy | |
| 1pm | 55°F13°C | 6 mph10 km/h N | Cloudy | |
| 2pm | 55°F13°C | 6 mph10 km/h N | Cloudy | |
| 3pm | 53°F12°C | 6 mph9 km/h N | Cloudy | |
| 4pm | 52°F11°C | 6 mph9 km/h N | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 30 | 43°F6°C | 58°F15°C | 4 mph6 km/h from N | Mostly Cloudy | Rain |
| May 1 | 49°F10°C | 64°F18°C | 9 mph15 km/h from NE | Mostly Cloudy | Mostly Cloudy |
| May 2 | 51°F10°C | 56°F13°C | 7 mph11 km/h from S | Cloudy | Drizzle |
| May 3 | 48°F9°C | 58°F14°C | 11 mph17 km/h from SW | Mostly Cloudy | Partly Cloudy |
| May 4 | 48°F9°C | 59°F15°C | 5 mph8 km/h from SE | Rain | Drizzle |
| May 5 | 51°F11°C | 59°F15°C | 5 mph7 km/h from W | Mostly Cloudy | Drizzle |
| May 6 | 49°F10°C | 59°F15°C | 11 mph18 km/h from W | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 49°F10°C, High of 64°F18°CWind: 9 mph15 km/h
Precipitation: 43% rain